<!DOCTYPE html>
<html lang="zh-en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"content="width=device-width,initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible"content="ie=edge">
    <title>测试</title>
</head>
<body>
<form action="https://taobao.com"method="post">
    <li>
        <label for="username">用户名</label>
        <input type="text" name="username"id="username">
    </li>
    <li>
        <label for="">备注</label>
        <textarea name="" id="" cols="30" rows="10"></textarea>
    </li>
    <li>
        <label for="">性别</label>

    <select name="sex" >
        <option value="0">男</option>
        <option value="1">女</option>
    </select>
    </li>
    <button type="submit">提交</button>
</form>

</body>
</html>